import numpy as np

print("F to C")
F = 1
print('%6s %8s %8s' % ('F', 'C', 'C2'))
while F <= 100:  # 循环
    C = (F - 30) / 2  # 计算近似值C
    C2 = (F - 32) * (5.0 / 9)  # 计算准确值C2
    print('%6.2f %8.2f %8.2f' % (F, C, C2))  # 输出
    F = F + 10  # 变量自增10

c=round(5/2)
print(c)